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Here is my latest user feedback:

Hello Wally, Three months ago I purchased a Deep=Core 1800, an Equi=Core 1800 MK2, a

Gold Power cord, and two Core Power Diamond Xtreme power cords.  The system has settled in now and I wanted to share some impressions. This is my third stab at power conditioning, and this configuration has taken the system to a new level.  I plugged my power amp, preamp, phono stage and DAC into the Equi=Core and plugged the Equi=Core into the Deep=Core.

For the first 20 hours or so it was obvious that the noise floor had dropped to the point of near invisibility, but the overall presentation seemed a little too polite. Then things started to get better. I’m at about 80 hours now and the system has really opened up.  The music

blooms forth from a still, silent backdrop like I’ve never experienced before, without the slightest hint of being overly polite, constrained or muffled.



In the meantime I’ve been tweaking VTA, VTF and azimuth on Ortofon cartridge (on an ET 2.5 tonearm) and those adjustments, on top of the changes wrought by the conditioners and cords, have me going back to LP’s I thought I knew by heart and hearing them in a whole new light. More inner detail, check. Tiny micro-dynamics, check.  Scary macro-dynamics, check. Deeper and wider soundstage, check. Super stable imaging, check. "In the room" realism, check.



Not too long ago I wasn’t getting a lot of enjoyment out of my system, but now I really look forward to listening sessions.  On many recordings, and not just audiophile staples, the experience isn’t just "listening to a good record", it’s more like attending a performance. 

I’ve had hints of that in prior configurations, but not nearly to the extent I’m experiencing now.  And yeah, goosebump incidences are way up.



Thanks and all the best.  MK



The new Equi=Core 2400 is a full 20 amp, 2400 watt, balanced line conditioner. It supports 12 products thru its standard 6  Hubbell style Duplex A/C receptacles. It is great for big power amps and users with dedicated 20 amp lines. It also works on 15 amp lines. It offers surge protection in addition to sonics that typically sell for $3000-$5000.00 from the competition. This new 2400 unit uses a state of the art 20 amp balanced transformer which adds electrostatic shielding to the original design to eliminate AC noise without the downsides of normal filtering. All units use series wiring and upgraded internal wire. The 2400 is 17" wide x 5.5"h x 14.6" deep.

              Five year factory warranty

 In the 2017 Tone Audio 1800 review they said:



"I could wax poetic about this track and that, but a power product either does what it is supposed to or it doesn’t. The Equi=Core 1200 and 1800 conditioners deliver the goods and offer outstanding value for the price asked. They are all made by hand in the Core Power factory in Colorado. And for those seeking additional value, they’ve got an awfully good “premium” power cord that can be bundled for only $99. The Shunyata Venom used to be my budget go to power cord, but this one easily takes it’s place. Even if you think you have “clean power,” you’ll be surprised at what one of these do for the overall sound quality of your system. It’s about a 10-minute demo. Plug it in, listen to your three favorite tracks, then take it out and repeat. This is an easy one, folks. So what are you waiting for? Give them a call (770-667-5633), they love to chat with their customers."



Read the entire review at:  http://www.tonepublications.com/review/the-equicore-1200-and-1800-power-conditioners/

Customers have all been blown away by the 1800 and this new 2400. They compare to the best conditioners at a fraction of their cost. See the reviews on the smaller units in our other Core Power ad. All are exceptional.

Eliminate noise and hum in your system through the clever use of “Common Mode Rejection” CMR technology

• Extensively used in small recording studios and high-end audio installations


• Eliminates mains interference by Common Mode Rejection


• Increases S/N Ratio by over -15 dB


• True Balanced 120v or 230V Power


• Removes Power Line Noise


• Eliminates Ground Loops in House Wiring


• Reduces Radiated Fields from Power Cords


• Soft Start Protects Equipment From Turn-On Surges


• Reduces Interference Between Equipment


• Made in the USA


• 17.2" w x 5.5" h x 14.6" d


• Surge Protected

Note: We have an option of upgraded $60.00 pure Red Copper Hubbell type Duplexes for $200.00 for 4 @ $200.00 or 6 for $300.00. Now only $149.00 for all 6. These replace the standard bronze Hubbell’s used in the standard model.

Call us to discuss these state of the art line conditioners.



Buy with confidence from AudiogoN’s #1 rated dealer by feedback.

We accept PayPal, Visa, Discover, AMEX, MasterCard and money orders.

Call me at 770-667-5633 to discuss these superb line conditioners.

GA & HI residents add sales tax.

What is Balanced Power?

In much the same way that balanced audio lines can eliminate hum, electromagnetic interference (EMI), and noise, the use of balanced AC power lines in sensitive audio, video, or computer installations can make an enormous difference in system noise and signal integrity. But power distribution in North America, unfortunately, is not balanced. The distribution standards currently in use were derived from practices established over a century ago, when electric power use was limited to lighting and motors —long before any AC noise sensitive applications existed. The emphasis then was on convenience (from the power utilities — standpoint) and safety, but not noise cancellation

Balanced power is not a new design or approach in power conditioning, however up till now its been very expensive because only small group of manufacturer’s specialize in selling Balanced Power. It’s a rather simple concept; in your home, the AC wall socket that you normally use has three conductors: hot, neutral, and ground. Normally, if you measure the hot to ground you should get 120 volts, and if you measure the neutral to ground you should get 0 volts, but more often than you would imagine this is not what happens, i.e., hot vs. ground might be far less than 120 volts, and neutral vs. ground might be far more than 2 or 3 volts. These offsets produce common mode AC line noise that becomes audible in your audio system.

In a balanced AC circuit, hot vs. ground, and neutral vs. ground will both read 60 volts. In other words, the hot and neutral conductors are both at 60 volts. Since these voltages are of opposite polarity though, and given that most interference in a typical AC line is common between the two lines, the noise in the lines is eliminated when the two lines are added together. This is effectively known as Common Mode Rejection (CMR).

Brands carried: Audio Alchemy, Audio GD electronics, Audio GE Teddy speakers, Black Ice Audio tube electronics, Bluesound music streamers & servers, Bob Carver tube amplifiers, Core Power Technologies A/V power conditioners and cables, DSPeaker room correction, EARMEN portable products, EAT Turntables, Emerald Physics speakers &  amplifiers, Focal headphones, HifiMan headphones, LSA speakers, turntables, headphones and electronics, Marantz Reference, Martin Logan speakers & subwoofers, Melco servers, Music Hall turntables, Ortofon cartridges, Peachtree Audio, Project turntables, Pure Audio Labs DAC’s, Quad speakers, headphones and electronics, Raal headphones, Silverline Audio speakers, SPL electronics, Sumiko cartridges, Wireworld & Wywires cables, Zesto Audio tube electronics

Sales policies on the Underwood Hifi Inc. website at www.underwoodhifi.com